Double-pipe condenser.



L. G. SCHNEIDER. DOUBLE PIPE CONDENSER. APPLICATION FILED SEPT. 22,1910.

1,016,582. v Patented Feb. 6, 1912.

UN T D srnrrns PATENT ornron.

LEOPOLD C. SCHNEIDER, OF 'PHILADELPHIA, PENNSXLVANIA, ASSIGNOR TO THEPHIL- ADELPHIA TIRE IBENDING-GQMPANX, ;,A-CORPOBATION OF NEW JERSEY.

- DOUBLE-FEE eonnnnsnn.

Specification of Letters i atent.

Patented ,Febvfi, 1912.

. Application filed-September 32, 1910. Serial No. 583,154.

To allwlwm itmay concern:

Be it knowmthat I, LEQPOLD C. Sonnnmnu, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented certain new and ueeiul improvements inDouble-Pipe -Condensers,uof which the following is a specification.

My invention relates to a double pipe condenser or similar apparatuswherein concentric pipes are employed, one Within the other, oneconducting a cooling agent, such as water, while the other conducts thegas or liquid to be cooled.

My invention resides more particularly in a double ,pipe returnconnection for use in condensers such as above described, for condensingammonia gas, cooling brine, or for any other purpose.

It is the ob ect of .my invention to simplify and improve theconstruction of double pipe return connections for Whatever purposeused, to make the pipesnccessible mdependentlyof each other, andto thisendhave provided the means and .featuresherematter described andclalmed, and constituting my invention.

For an illustration of one of the forms my ,mvention may take, referenceis to be had to the accompanying drawings, .in which: T

Figure 1 is a side elevational View of a stack-of pipes fitted with myimproved return connections. Fig. 2 is an elevational view, partly inlongitudinal section, illustrating the double return connection. Fig. 3

is a transverse sectional view, partsin elevation, of my returnconnection. Fig. A: .is

a planview of one of the connectingmembers. Fig. 5 is a fragmentaryview, partly, in section, showing the concentric pipes se-.

cured to a suppor Within each external :pipe 1 is an internal pipe 2with a space between them, so that gas or liquid maybe space whileanother gas or llgui passes through the internalp1pe. These concentricpipes are made into a stack .by securing them to the members 3, such asT bars, havf' ingthe flange 4 and the web5. As seen in Figs. 1 and 5 thepipes are secured to the members 3 by stirrups 6: embracing the pipesand extending through the flanges 4 and secured by nuts 7. At the endsof the double pierced by passages 13 and.

the lexternal passed throu h such pipes double return connections ,arepro,

ided, so t a the return passag s gare eintained separate and distinctfirom each other.

[As seen'from Fig. -2, a ,flange coupling member 8 is welded tothenexternal pipe 1 and is provided with a circular groove .9

- m which is secured packing mater al, such as rubber orot-her suitablematerial 10; and into the groove 9 fits the circular tongue 11 upon thecomplementary or associate flange coupling member 12 similarly welded tothe .neighborin external pipe 1. The flange coupling mem ers 8 and 12are 14 respectively, in alinement with each other, and communicatewithfthe interiors of the external pipes 1, as shown in Figs. 2 and 3.

The flange coupling member 12-is shown in Fig. 4 n plan view, lookingfrom the under sidecf Fi 3.

, Each of the an e coupling members 8 and 12 is provided with the boltholes 15, such .as shown in Fig; 4, these bolt holes comingopposite eachother in the two flange coupling members and through them extendthe-bolts 16 provided with heads-17 and nuts 18, "for drawing the flangecoupling members snugly together to make a tight vjoint at 9, .10, .1-'1, allowingfree passage of gas or liquid from the space surrounding oneinternal pipe 2 to the space surrounding the other internal pipe 2.

At the end of each external .pipe 1, beyondthe flange coupling members 8.or 12, pipe 1 iscxpanded as shown at 19, the internal pipe extendingbeyond and.outside of the external pipe ,1, in the particular formillustrated. Embracingthe pipe 2 and fitting withinthe expanded portion19.0f the pipe .1 is a steel or other ring 20, and next to the ring 20is disposed a gasket 21 vof rubber of othersuitable. material, againstwhich engages the inner end of a gland member 22, of steel or othersuitable material. The expanded portion 19 .is preferably shrunk uponring-or collar 20 to hold the same securely, and pipe 2 maybe easilypassed through collar or ring 20. In the outer part of the gland member22 is disposed a gasket 23 of rubber or other suitable materia a instwhich engages the end 2 of the bend member 25 of cast iron or othersuitable material, whose other end 24: engages in the gland member'22 ofthe neighboring pipe. Upon the expanded portion 19 of the external pipe1 are welded or otherwise secured ears 26 having holes through whichextend the bolts 27 having heads 28 engaging against one side of the.ears 26. The bolts '27 extend through holes inears 29 upon the glandmembers 22, nuts 30 engaging the bolts 27 and drawing the gland members22 toward and into the expanded portions 19 of the external pipes 1. Thebolts 27 continue on outwardly and extend through ears 31 upon the bendmembers 25, and nuts 32 upon the bolts 27 engage the'ears 31 and forcethe bend members toward'the right, as viewed in Fig. 2, snugly againstthe packing material 23 in the gland members22; It is apparent,therefore, that these bolts serve both to securethe gland members to theexternal pipes and to draw the bends, as 25,]into proper relation withrespect to the gland members 22 and the internal pipes 2.

,struction shown. v

From the foregoing description, itis apparent that the return bends ofthe interior pipes may be removed and that theinterior pipes themselvesmay be removed from withinfthe exterior pipes without disturbing theconnection between the exterior pipes.

It is also possible vto easily and promptly disconnect an exterior pipeand its internal pipe from a; neighboring pair by the con- By theconstruction herein disclosed, the exterior pipe is itself employed'as afitting or connection member, tor where it is expanded, at 19, itreceives the packing material and the gland to make a tight jointaroundvthe interior pipe. The construction shown, involving this mode ofuse of the external pipe, together with the flange couplings welded tothe external pipes, avoids the use of se arate screw threaded fittingsthreaded to t e external pipes and in turn secured to'each other.

.By my construction, the exterior and internal pipes may be made ofmetal other than cast metal, and particularly the ex-' terior pipe is ofmetalother than cast metal to'permit the welding of the flanges 8 and 12thereto and topermit of the-expansion of;

said'pip'e, the end of said pipe being ex-- eater panded, saidexpandedendhavin a internal diameter than the interna diameter of-saidpipe.

23in apparatus of the class described, an exterior pipe, a couplingwelded on said pipe and havingan opening communicating with the interiorof said pipe through an opening in the side of said pipe, an internal"pipe within said external pipe, a gland joint between said external andinternal pipes beyond said coupling, a. bend forming communication withthe interior of said internal pipe, and a second gland joint betweensaid internal pipe and said bend.

3. In apparatus of the class described, an exterior pipe, a flangecoupling having an openin communicating with the interior of said pipe,said flange coupling welded to said pipe, the end of said pipe beingexpanded, said expanded end having a greater internal diameter than theinternal diameter of said pipe,.and a ring within said expanded end.

4. In apparat-us'of the class described, an exterior pipe, a couplingwelded on said pipe and having an opening communicating with theinterior of said pipe through an opening in the, side of said pipe, aninternal pipe within said external pipe, a bend communicating with theinterior of said internal pipe, and a unitary double glandv beyond Saldcoupling forming joints between said external and internal pipes andsaid internal pipe and said bend.

5. In apparatus of the class described, an exterior pipe, a flangecoupling having an opening communicating with the interior of said pipe,said flange coupling welded to said pipe, theend of said pipe beingexpanded, said expanded end having a greater internal diameter than theinternal diameter 'of said pipe, and a ring within said expanded end,said expanded end shrunken upon said ring.

6. Thev combination with an external pipe,

of a coupling welded on the side thereof,

having a passa e communicating with the interior of said pipe through anopening in the side of said pipe, an internal pipe disposed within saidexternal pipe, a bend communicating with the interior of said internalpipe, an annular gap formed between said external and internal pipesbeyond said coupling, means forming a joint between said external andinternal pipes in said annular gap and forming a second and distinctjoint between said internal pipe and said bend beyondsaid firstmentioned joint. 4 y

7. In combination, neighboring pairs of external and internal pipes,flange -couplings welded to the sides of the external pipes and havingpassages communicating w th the interiors of said external pipes, meansfor holding said flange cou lings together, a gland member surroun ingeach internal pipe and directly engaging the external pi and with a bendfor forming a closed oint between the external pipe and gland member andsaid external pipe for holding the same in operative relation.

8. In combination, an external pipe, an-

expanded end thereon, a ring within said expanded end, an internal pipeextending through said ring, and a gland member engaging said externalpipe for making a closed joint between said external and internal pipes.

9. In combination, an external pipe, an expanded end thereon, a ringwithin said expanded end, an internal pipe extending through said ring,a gland member engaging said external pipe for making a closed jointbetween said external and internal pipes, and a flange coupling weldedto the side of said external pipe and having a passage communicatingwith the interior of said external pipe.

10. A double pipe condenser comprising a series of pairs of external andinternal pipes, a flange coupling welded to the side of each externalpipe, means for connecting said flange couplings to each other, apassage through said flange couplings communicating with the interiorsof the external pipes, a gland surrounding the interior pipe andengaging in the exterior pipe,,and means engaging in neighboring glandsfor connecting the interiors of neighboring internal pipes together.

11. A double pipe condenser comprising a series of pairs of external andinternal pipes, a flange coupling welded to the side of each externalpipe, means for connecting said flange couplings to each other, apassage through said flange couplings communicating with the interiorsof the external pipes, each external pipe having an expanded end, agland engaging in said expanded end, the internal pipe extending withinsaid gland, and a bend'engaging in said gland adapted to connect theinterior of the internal pipe to the interior of a neighboring internalpipe. I

12. A double pipe condenser comprising a series of pairs of external andinternal pipes, a flange coupling welded to the side of each externalpipe, means for connecting said flange couplings to each other, apassage through said flange couplings communicating with the interiorsof the external pipes, bends connecting the interiors of the interiorpipes, and glands be 0nd said flange couplings engaging said ends andsaid external and internal pipes.

13. A double pipe condenser comprising a series of pairs of external andinternal pipes, an expanded end on each external pipe, a bend connectingthe interiorg of neighboring interior pipes, and a gand member engagingin said expanded end forming a joint between said bend and the interiorpipe and forming a closed joint between an external pipe and itsinternal pipe.

14. A double pipe condenser comprising a series of pairs of. externaland internal pipes, an expanded end on each external pipe, a bendconnecting the interiors of neighboring interior pipes, a gland memberengaging'in said expanded end forming a joint between said bend and theinterior pipe and forming a closedjoint between an external pipe and itsinternal pipe, a flange coupling welded to the side of each externalpipe, means for connecting the flange couplings on neighboring pairs,and passages through said flange couplings to the interiors of theexternal pipes.

15. A double pipe condenser comprising a series of pairs of blankexternal and internal pipes, couplings welded on said ex ternal pipes,passages through said couplings for connecting the interiors of saidexternal pipes, and glands surrounding said .internal pipes formingclosed joints between the external and internal pipes beyond saidcouplings.

16. The combination with a blank .external'pipe, of a coupling welded onthe side thereof and having a passage communicate ing with the interiorthereof, a second pipe disposed within said first mentioned pipe, and agland surrounding said second pipe beyond said coupling engaging saidexternal and internal pipes to form a closed joint between the same.

17. The combination with a blank external pipe, of a coupling welded onthe side thereof and having a passage communicating with the interiorthereof, said external pipe having an expanded end beyond said coupling,a second blank pipe disposed within said external pipe, and a glandengaging in said expanded end to form a closed joint between saidexternal and ,internal pipes.

18. The combination with a blank external pipe, of a coupling welded onthe side thereof and having a passage communicating with the interiorthereof, said external pipe having an expanded end beyond said coupling,a second blank pipe disposed within said external pipe, a gland engagingin said expanded end to form a closed joint between said external andinternal pipes, a member communicating with the interior of saidinternal pipe, and a joint between said member and said gland.

19. In combination, an external pipe, a coupling welded thereon andhaving a passage communicating with the interior of said external pipethrough an opening in the side of said external pipe, an ear on saidexternal pipe beyond said coupling, an internal pipe disposed withinsaid external pipe, a pipe bend communicating with the external andinternal pipes and between said internal pipe and said pipe bend, and

.a bolt for drawing said pipe bend, said double gland and said ear onsaid external pipe together. I

20. The combination with an external pipe, of a coupling welded thereonand having a passage communicating with the interior of said pipe, aninternal pi e disposed within said external pipe sai internal. andexternal pipes extending beyond said coupling and having an annularspace between them, a pipe bend afiording communication with theinterior of-said internal pipe, means forming a joint between saidexternal and internal pipes in said annular space beyond said couplingand a second joint between said internal pi e and said bend beyond saidfirst mentione oint. In testimony whereof .I have hereunto afiixed mysignature in the presence of the two subscribing witnesses.

LEOPOLD C. SCHNEIDER.

, 'VVitnesses:

ELEANOR T. MOCALL,

ANNA E. STEINBOCK.

